Rectangular roof lanterns in Amersham
Buy rectangular roof lanterns for homes in Amersham and across Buckinghamshire. Choose a standard size or have one made to your kerb, see a guide price straight away, then get a fixed written quote with delivery to your HP7 address.
Price a rectangular roof lantern for Amersham
Postcode and kerb size first, then your details. We reply with a fixed written quote.
Rectangular roof lanterns for Amersham homes
The classic double-hipped lantern: a ridge, four sloping sides and the most size choice.
In midsummer the noon sun stands about 61.8° high over Amersham, so roof glazing gets the full strength of it. That is why solar-control glass is worth considering on larger lanterns here.
- The most size options of any lantern shape
- Stock anthracite, black or white, or any RAL
- Suits kitchen-diners and rear extensions
Delivery and fitting in Amersham
We confirm the delivery cost and date for HP7 on your quote. Lanterns arrive palletised, with the glass packed separately.
Fitting in Amersham can be quoted on request by installers working under S&K, subject to cover for your postcode.
Delivery to HP7 is standard mainland delivery, priced for your postcode and confirmed in writing before you order.
Rectangular roof lantern prices for Amersham
Guide prices for common rectangular roof lantern sizes, including VAT, supply only:
| Kerb size | Roof area | Guide price | Configure |
|---|---|---|---|
| 1500 × 2000 mm | 3.00 m² | £1,995–£2,295£1,662 ex VAT from | Configure |
| 1500 × 2500 mm | 3.75 m² | £2,295–£2,695£1,912 ex VAT from | Configure |
| 2000 × 3000 mm | 6.00 m² | £3,195–£3,695£2,662 ex VAT from | Configure |
| 2000 × 4000 mm | 8.00 m² | £4,095–£4,795£3,412 ex VAT from | Configure |
Guide prices include VAT at 20%, supply only, aluminium with self-cleaning double glazing in a stock colour. Your fixed price is confirmed in writing on your quote before you order.
Planning and building regulations for Amersham
England's Approved Document L caps the U-value of new or replacement rooflights in existing homes at 2.2 W/m²K, calculated with the glass horizontal.
On a permitted development extension the lantern counts towards the extension's height; on an existing roof, a rooflight projecting more than 150 mm may need planning permission.
Building regulations in Amersham are checked by your local authority building control team or a registered building control approver. Replacing a rooflight in an existing home is building work. Installers registered with a competent person scheme can self-certify; otherwise building control must be involved.
Sources: Approved Document L, GOV.UK · Planning Portal
Questions from Amersham
Which way should the ridge run?
The ridge runs along the longer side. On a square opening there is no ridge and the lantern becomes a pyramid.
Does a longer lantern need extra support?
Long lanterns use intermediate rafters inside the lantern itself. The roof structure around the opening must be designed to carry the lantern's weight; your builder or engineer sizes the trimmers.
Do you deliver roof lanterns to Amersham?
Yes. Delivery to Amersham (HP7) is quoted for your exact postcode and confirmed in writing on your quote, together with the lead time.
Do I need planning permission for a roof lantern in Amersham?
Often not, but it depends on the roof, the property and whether it is listed or in a conservation area. Check with your district, borough or unitary council before ordering.